public class test3_2{
    public static void main(String[] args) {
        char c = '\0';
        for(int i=1; i<=4; i++){
            switch (i){
                case 1: c = 'J';
                        System.out.println(c);
                case 2: c = 'e';
                        System.out.println(c);
                case 3: c = 'p';
                        System.out.println(c);
                        default:System.out.println("好");
            }
        }
    }
}